mirror of
https://github.com/bolero-MURAKAMI/Sprout
synced 2024-11-12 21:09:01 +00:00
112 lines
3.6 KiB
C++
112 lines
3.6 KiB
C++
/*=============================================================================
|
|
Copyright (c) 2011-2013 Bolero MURAKAMI
|
|
https://github.com/bolero-MURAKAMI/Sprout
|
|
|
|
Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
=============================================================================*/
|
|
#ifndef SPROUT_DARKROOM_MATERIALS_PLAID_HPP
|
|
#define SPROUT_DARKROOM_MATERIALS_PLAID_HPP
|
|
|
|
#include <cstdint>
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/tuple/tuple.hpp>
|
|
#include <sprout/math/fmod.hpp>
|
|
|
|
namespace sprout {
|
|
namespace darkroom {
|
|
namespace materials {
|
|
//
|
|
// plaid_element
|
|
//
|
|
template<typename Element, typename Scale = double>
|
|
class plaid_element {
|
|
public:
|
|
typedef Element result_type;
|
|
typedef Scale unit_type;
|
|
private:
|
|
result_type elem1_;
|
|
result_type elem2_;
|
|
unit_type scale_;
|
|
private:
|
|
template<typename Unit>
|
|
SPROUT_CONSTEXPR result_type
|
|
calc_1(Unit const& u, Unit const& v) const {
|
|
return (u >= 0 && v >= 0) || (u < 0 && v < 0) ? elem1_ : elem2_;
|
|
}
|
|
public:
|
|
SPROUT_CONSTEXPR plaid_element(result_type const& elem1, result_type const& elem2, unit_type const& scale = 1)
|
|
: elem1_(elem1)
|
|
, elem2_(elem2)
|
|
, scale_(scale)
|
|
{}
|
|
template<typename Unit>
|
|
SPROUT_CONSTEXPR result_type
|
|
operator()(Unit const& u, Unit const& v) const {
|
|
return calc_1(
|
|
(u < 0
|
|
? scale_ + sprout::fmod(u, scale_)
|
|
: sprout::fmod(u, scale_)
|
|
)
|
|
- scale_ / 2
|
|
,
|
|
(v < 0
|
|
? scale_ + sprout::fmod(v, scale_)
|
|
: sprout::fmod(v, scale_)
|
|
)
|
|
- scale_ / 2
|
|
);
|
|
}
|
|
};
|
|
//
|
|
// make_plaid
|
|
//
|
|
template<typename Element>
|
|
inline SPROUT_CONSTEXPR sprout::darkroom::materials::plaid_element<Element>
|
|
make_plaid(Element const& elem1, Element const& elem2) {
|
|
return sprout::darkroom::materials::plaid_element<Element>(elem1, elem2);
|
|
}
|
|
template<typename Element, typename Unit>
|
|
inline SPROUT_CONSTEXPR sprout::darkroom::materials::plaid_element<Element>
|
|
make_plaid(Element const& elem1, Element const& elem2, Unit const& scale) {
|
|
return sprout::darkroom::materials::plaid_element<Element, Unit>(elem1, elem2, scale);
|
|
}
|
|
//
|
|
// make_plaid_material_image
|
|
//
|
|
template<typename Color, typename Reflection>
|
|
inline SPROUT_CONSTEXPR sprout::tuples::tuple<
|
|
sprout::darkroom::materials::plaid_element<Color>,
|
|
sprout::darkroom::materials::plaid_element<Reflection>
|
|
>
|
|
make_plaid_material_image(
|
|
Color const& col1, Color const& col2,
|
|
Reflection const& ref1, Reflection const& ref2
|
|
)
|
|
{
|
|
return sprout::tuples::make_tuple(
|
|
sprout::darkroom::materials::make_plaid(col1, col2),
|
|
sprout::darkroom::materials::make_plaid(ref1, ref2)
|
|
);
|
|
}
|
|
template<typename Color, typename Reflection, typename Unit>
|
|
inline SPROUT_CONSTEXPR sprout::tuples::tuple<
|
|
sprout::darkroom::materials::plaid_element<Color, Unit>,
|
|
sprout::darkroom::materials::plaid_element<Reflection, Unit>
|
|
>
|
|
make_plaid_material_image(
|
|
Color const& col1, Color const& col2,
|
|
Reflection const& ref1, Reflection const& ref2,
|
|
Unit const& scale
|
|
)
|
|
{
|
|
return sprout::tuples::make_tuple(
|
|
sprout::darkroom::materials::make_plaid(col1, col2, scale),
|
|
sprout::darkroom::materials::make_plaid(ref1, ref2, scale)
|
|
);
|
|
}
|
|
} // namespace materials
|
|
} // namespace darkroom
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_DARKROOM_MATERIALS_PLAID_HPP
|